As a business owner, the safety of your employees should be one of the top priorities on your mind. Providing adequate protection measures, like complying with insulation resistance specifications, can eliminate the possibility of having a life-threatening situation such as a short circuit or an electric shock
Insulation resistance testers or IR testers are essential for the safe operation and prolonged life of any electrical system or high voltage equipment. However, choosing the right insulation tester for your business can be a difficult task. Do you choose your IR tester based on the equipment to be tested? Or do you take into consideration the voltage requirements or testing environment?
To make things easier for you, we have compiled a list of five factors to consider when choosing the right IR tester for your business.
1. The equipment you need to test
The equipment you need to test, the nominal voltage rating of your equipment and the number of ir tests that you plan to perform annually can give you an idea about the ir tester you would need. While the nominal voltage helps to zero in on the test voltage needed from the tester, the annual number of insulation resistance tests determines the quality and durability of the tester.
2. Voltage requirements
The ir tester you choose should match your equipment’s voltage requirements. In other words, you should choose a tester that will supply the needed output test voltage required for the equipment. This has to be based on the manufacturer’s recommended DC insulation resistance test voltage. You can refer to the International Electrical Testing Association’s table of recommendations if the test voltage is not indicated.
3. The testing environment
Will you be using your ir tester for only periodic maintenance? Or are you going to use it for troubleshooting problems or both? Will the testing be done in a smaller testing environment or in a huge industrial plant?
Bearing in mind where the tests are going to take place is another factor that is going to help you choose the right ir tester.
4. What you plan to learn from an ir test
What you are planning to learn as part of your insulation resistance test aids you in picking the right tester. Would you be measuring polarization current or measuring leakage current? For example, you may not even need a dedicated insulation resistance tester if the task is simpler.
5. Experience level of technicians
While choosing an ir tester, the expertise of the technician who will be performing the insulation resistance tests is important. If the experience levels are minimum, consider an ir tester with lesser functions and no complications. However, as mentioned earlier, it is important that the insulation resistance tester should meet the output test voltage.
Still having trouble choosing the right resistance insulation tester? Keep the above-mentioned advice in mind; you are on your way to finding the right ir tester for your business.